I'm with Krodaddy. An unneeded complication in my book. The difference in flame front on this engine probably couldn't be noticed. The stock compression ratio is 6 to 1. The nice hemi head design, even on the Classic engine, is well engineered for it's time.

Not many dual plug hemi head racing engines for cars either.

Dual ignitions are standard in aircraft engines for redundancy and safety in the first place.

I wonder if dual plugs would result in reduced emissions and better fuel economy? I understand that to be the case with 2005 and later BMW F bikes and 2007 and later Suzuki V-STROM 650s. But those are fuel injected and liquid cooled.

You would get the same result with less creative engineering having to be done. They sell one for single piston engines and a fair amount of competitive motocross riders use these types of devices on their bikes. If your not familiar with MSD what it basically does is causes several sparks instead of one spark each time your ignition fires. I had one of these on my '78 Camaro back in the day when I used to race at the 1/4 mile track. It worked great but only added a very modest difference in performance mainly it looked cool and gave me one more thing to adjust in the pit.

Aloha

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